Steam Engine Design
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This page will be used to describe the OSE Open Source Steam Engine design, design issues, and completed drawings.
See bump valve prior art - http://www.rossen.ch/solar/wcengine.html
- Existing and Historic Designs
- Other Engine Designs
- Steam Generator Designs
See Steam Engine Reviews for design criticism and Steam Engine Design/Suggestions.
Bump Valve Engine Design
Three points in the steam cycle are shown.
- 5/2/11 - Rev. 2: Initial bump valve design.
- 5/6/11 - Rev. 3: Added flange on crankshaft end of cylinder and exhaust plenum.
- 5/10/11 - Rev. 4: Improved bump valve added, cylinder liner is now thick.
- 5/11/11 - Rev. 5: Added mount brackets, pillow block, extended piston stem.
- 5/25/11 - Rev. 6: Widened cylinder flanges, dropped water vent, added sensor vent, cylinder liner to scale.
- 7/20/11 - Rev. 7: Merged valve cover and mounting bracket. Added oiler.
1. Steam Fires
2. Steam Expands
3. Steam Vents
This is a single-action uniflow steam engine that uses a bump valve to admit steam and an exhaust vent to emit cooled steam.
- Simple design with a mix of fabricated and off-the-shelf parts.
- Modular and stackable - cylinders can be ganged together to increase power.
- Easy assembly - minimal welding
- Repairable - comes apart for cleaning, maintenance, and repair.
- Easy fabrication - lathing, milling, cutting, and drilling.
- Self-lubricating - oil sprays.
- Crank shaft can be configured for multiple cylinders.
- Steam Engine Design/Bump Valve
- Steam Engine Design/Cylinder
- Steam Engine Design/Crank Shaft
- Steam Engine Design/Piston
- Steam Engine Design/Lubrication
- Steam Engine Design/Exhaust